From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Brazil is building a dam that can generate tons of electricity, but will destroy a critical migratory path for many giant catfish.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

To hunt, dolphins throw themselves in unison on to banks, which propels the fish on to the ground.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

The crew celebrates the end of their 2300 mile journey with a toast to the Mississippi River itself.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

The gang joins one of the last remaining commercial fisherman on the Mississppi to see what it’s like to live off the river.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

One of the best sport fisherman in the area teaches the crew how to hook the biggest fish in the river, as they ease into Memphis.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Hold your noses! The gang helps clean some rather stinky cages at a Louisiana zoo while they wait for a hurricane to blow over.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

The crew heads back out to shark laden waters off Mexico’s west coast to prove that Guadalupe Island is a shark breeding ground.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Mummies are CT scanned to see if one is Nefertiti.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

A powerful mine, combined with the crew’s neglect, seal the HMS Audacious' doom.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

How could a single mine bring down a ship deemed 'unsinkable'? The investigation begins.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

After his canoe capsizes, Ed knows that little stands between life and death in the wild.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

It’s the little things that keep Ed happy these days — and small projects around camp keep him sane too!

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Meet the crew as they travel across Egypt to capture their amazing footage for Egypt Unwrapped — for these adventurers, it’s all in a day's work.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Week 1: Few things bring Ed comfort when he’s sleeping alone in the woods — but the electric bear fence sure helps!

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Ed is dropped off with his gear at Dogpack Lake, and the reality of what lies ahead sets in.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Meet the crew as they travel across Egypt to capture their amazing footage for Egypt Unwrapped — for these adventurers, it’s all in a day's work.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Ed arrives in the Ruby Range and follows a lake-side game trail to find the best place to make camp.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Ed arrives in the Ruby Range and follows a lake-side game trail to find the best place to make camp.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

One bite and he’s a dead man if he doesn't know his stuff. So before foraging for food, Ed studies up on local plant species.

From: National Geographic Channel on Wed, Oct 27 2010 2:04 PM

Week 2: Ed’s getting used to coping without the luxuries of modern life. But is he really tough enough for 3 months in the wild?